About a month ago, we reported the news that "a domestic head car company (state-owned enterprise)" announced the successful research and development of "rubidium titanate ceramic capacitor energy storage". According to the company, the energy storage density of this technology will reach 5 to 10 times that of lithium batteries. What is this concept? According to the current calculation of the ministry of industry and information technology of many electric vehicles with an endurance of 400 kilometers, 5 times is 2000 kilometers; 6 times is 2400 kilometers (4800 miles).
Because at that time, in the spirit of "trying to avoid the suspicion of advertising", it was not specifically stated who this company was, and only used the name of "a domestic head car company (state-owned enterprise)". But perhaps because of this, many readers think that this news is fake news, that the author made it up.
After much deliberation, the author decided to write a detailed explanatory text to clarify the ins and outs of the "rubidium titanate ceramic capacitor energy storage" matter. ——After that, I hope that all readers who have carefully read this article can make a testimony: we all supervise this company together! Because the more people know, the greater the power of public scrutiny. In order to answer many questions, this article adopts the form of "one question and one answer".
A brief review of events:
What the hell is going on?
——A large car company (state-owned enterprise) in Guangdong announced that the research and development of rubidium titanate ceramic capacitor super energy storage components, its key core material rubidium titanate ceramic, has successfully obtained patent authorization, and the physical sample has passed the national authoritative tripartite verification, announcing that it has "reached the corresponding physical and chemical indicators described in the patent".
The super energy storage components developed based on this technology are planned to be commercialized by the end of 2023 or early 2024, and will be industrialized during the "14th Five-Year Plan" period. According to the company's description: the cost of this technology is not higher than that of lithium batteries.
As far as the author knows, the United States EEStor company has also developed a similar technology "barium titanate high-voltage laminated supercapacitor", and obtained the investment of Lockheed Martin, the number one arms contractor in the United States (the project is currently in a state of "suspension" and "conversion"), the difference is that the United States EEStor chose "barium titanate", while the mainland chose "rubidium titanate".
The article mentions "domestic head car companies."
(State-owned enterprises) "Who exactly is it?"
——This "domestic leading car company (state-owned enterprise)" is GAC Group. The enterprise that holds the "Rubidium titanate super energy storage" technology patent is called "Guangzhou Tuo New Energy Technology Co., Ltd."
Chairman and CTO of "Juwan Technology Research Institute": Huang Xiangdong - Fellow of the Society of Automotive Engineers of China, Professor and Doctoral Supervisor of South China University of Technology, former Deputy General Manager and Chief Engineer of GAC Group, first President of GAC Research Institute; successfully presided over the development of a number of star independent models including Trumpchi GS4 and GS8.
General Manager of "Juwan Technology Research Institute": Pei Feng - Ph.D., Senior Engineer, Former Director of the Pilot Technology Department and new Energy Department of GAC Research Institute, leader of the artificial intelligence team; host of GAC New Energy Vehicle R&D, Automotive Electronic Control ECU Platform and Sandian Product R&D and Application Project.
Chief Scientist of "Juwan Technology Research Institute" Energy Storage Technology: Mao Wenfeng - Ph.D. of Tianjin University, Postdoctoral Fellow of Huagong New Energy Materials, Professor-level Senior Engineer, Former Deputy Chief Expert of GAC Research Institute.
It can be seen that the top management of "Juwan Technology Research" all comes from GUANGZHOU AUTOMOBILE Group. At present, almost all of the batteries, chargers, charging piles, etc. of GAC Ean New Energy Vehicles come from the "Juwan Technology Research", it can be said that the "Juwan Technology Research" is basically the "cutting-edge research and development base" of GAC Group's new energy.
"Rubidium titanate Super Energy Storage"
It was fabricated,
Or does it really exist?
To answer this question, I don't think it would be as convincing as if I had thrown out patent-related information directly.
Patent Name: Complex phase rubidium titanate functional ceramic material and preparation method thereof
Inventors: Huang Xiangdong, Pei Feng, Huang Sirui, Hu Zhipeng, Wang Zhuo
Application number: CN202011302322.3 Application date: November 19, 2020
Please note: In the inventor column, does Huang Xiangdong and Pei Feng sound familiar? That's right! These 2 were mentioned above. At present, the information disclosed by "Juwan Technology Research" can be seen: "Rubidium titanate super energy storage" code name SCB, Chinese full name is "rubidium titanate laminated ceramic supercapacitor". In addition to the above-mentioned EEStor barium titanate project, the famous Murata Manufacturing Murata Inc. in Japan has also studied similar technologies.
Is GAC Group bragging?
What happened to those cows that had been blown before?
——GAC has been blowing "3 big bulls" since more than a year ago: First of all, they said they wanted to create electric vehicles with a range of more than 1,000 kilometers. Then they said they wanted to do "5 minutes on a charge and 200 kilometers." Finally, they said that "successfully developed a patent related to rubidium titanate super energy storage".
I remember that at that time, people all over the world were questioning GAC and mocking GAC (and even an academician). So what happened? ——Last year, GAC Aean LX was listed, and the Ministry of Industry and Information Technology lasted 1008 kilometers! This car is still the world's longest-lasting electric car!
Immediately after the gac Aean V PLUS was listed, it performed "5 minutes of charging, 207 kilometers of battery life" in Guangzhou! The whole process is certified by the WRCA (World Record Certification Agency), the world's most authoritative official certification body for records, headquartered in London, Uk. (International authority is higher than "Guinness")
GAC Aean V PLUS was awarded the "World Record for the Fastest Charging Speed Ever Electric Vehicles Before 2022". There are two core technologies that have reached this world record: three-dimensional structural graphene (codenamed 3DG) lithium battery (charging rate 6C, the world's highest rate of automotive power battery) - this technology comes from "Juwan Technology Research", graphene materials and batteries have "Juwan Technology Research" production.
In addition, the 480KW charging power (480 kWh per hour, the current world's largest) uses "full liquid cooling" technology (liquid forced cooling can make the cable very thin). And according to the introduction of "Juwan Technology Research", this charging pile has already been upgraded to the level of 1000V/600A (corresponding to the charging power of 600KW).
If any reader questions whether this is on paper or has really been made, already exists... Well! Then you can ask your local friends in Guangzhou. On September 1, 2021, their world's first demonstration-level supercharger station has been publicly unveiled, and the fans who run to the scene to see the liveliness are endless...
Let me ask you: a company blows 3 cows in a row, and when everyone is waiting to see its jokes, it slaps the doubters with the actual product, and smokes so loudly! 2 cows in a row – so what reason do we have to suspect the "3rd cow"? Therefore, we are willing to believe that "rubidium titanate super energy storage should be true"!
Supercapacitors can only be charged and discharged instantaneously,
Can't achieve long-term continuous power supply?
The original supercapacitor was called "electrochemical double-layer capacitor" (code name EDLC), the energy density is generally more than 5Wh/kg, although it can be used to store electricity, but the maintenance time is not long. For example, buses and light railways in Shanghai, Zhejiang, Shenzhen and other places use EDLC capacitors. Basically, it can be done "charging once for more than ten seconds, and then you can live 5 kilometers". 10 years of performance is almost not decaying, not afraid of the cold, city buses are a perfect match!
The biggest advantage of EDLC supercapacitors over lithium batteries is that they can "adapt to extremely large charging currents." Simply put: as long as the grid and wires can stand it, how fast you can charge it. Because of the small capacity, a single charge can only maintain the endurance of the car for about 5 kilometers. But even so, it is extremely wrong to describe supercapacitors as "instantaneous charge and discharge"!
With the development of supercapacitor technology, after the EDLC scientists developed a "fake capacitor", the capacity is more than 1 times more than the first generation of EDLC (can reach more than 10Wh / kg), the current South Korean famous Nesscap brand fake capacitor, if you want, you can buy at any time. —— Compared with EDLC, it can store 1 times more electricity under the same weight and volume.
After "fake capacitors", "lithium-ion capacitors" (LIC) were invented in Japan. The energy density has been increased to the level of 40Wh/kg, which can completely replace the ancient lead-acid battery. At present, the latest technology is called "hybrid supercapacitor" (HUC), and the energy density has been further improved to the level of 100Wh/kg (and even some new products have reached 150Wh/kg), which has fully reached the level of replacing nickel-metal hydride batteries and lithium titanate batteries. At present, China's Aowei Technology, Alkenite Carbon Energy, Instantaneous Energy Technology and other enterprises have products, of course, you can buy at any time (interested in buying them yourself to do experiments).
What is the law of conservation of energy?
Does "rubidium titanate" violate energy conservation?
The law of conservation of energy simply means that energy will not be produced for no reason! Any change in energy is actually a process of "transformation", and there is no "creation out of nothing".
Whether it is a battery or a supercapacitor, the electrical energy they store is input to them from the outside world - that is, the "charging" process. Therefore, it does not violate the law of conservation of energy. It is nothing more than "rubidium titanate super energy storage" because the energy density is very high (companies say it is 5 to 10 times higher than lithium batteries), so many people feel that it is "impossible".
However, from lead-acid batteries (energy density is generally 35Wh/kg), to nickel-metal hydride batteries (energy density is generally 75Wh/kg), to lithium iron phosphate batteries (energy density is generally 150Wh/kg), and then to ternary lithium batteries (energy density is generally 300Wh/kg)... The energy storage density has increased by about 8.5 times! If you go back a few decades and someone tells you that "the battery of the future can store 8.5 times more electricity", will you also insist that "it is impossible"?
Will it be successful? What if it fails?
Since the "Juwan Technology Research Institute" said that it plans to commercialize the "rubidium titanate ceramic energy storage" at the end of 2023 or early 2024, it will be industrialized during the "14th Five-Year Plan" period. That's only 2 years left. So the author's idea is: all of us polish our eyes to see how they "lie"! (Of course, the author prefers them to successfully come up with a product)
However, from the video of Mr. Pei Feng, president of Juwan Technology Research Institute, the author carefully observed his expression and eyes when describing the topic of "rubidium titanate ceramic super energy storage". When he recalls the "rubidium titanate part", the eyeball does not deflect to the right (most liars deflect the eyeball to the upper right when "recalling the scene").
If they can't come up with the corresponding products at that time, then the trust of the majority of readers (including the author) in domestic enterprises and teams will be hit hard, and the trust in the domestic science and technology innovation board will once again be reduced.
New energy car owners scan the code to receive free car wash